Why do you want to buy in Hong Kong? Plenty of amp made in China selling here with good price. You buy in HK, you can kiss your warranty goodbye.
Also, you better know what you are getting into, not everything is cheap. I was from HK long time ago, I went back, not everything are cheap, some are even more expensive. I won't take the chance.
Own designed power amp, own designed preamp, JM LAB Spectral 913.1 speakers, Rythmik F12SE sub.
Not hooked up: Nakamichi Stasis PA-7 power amp, Velodyne VA1210 sub, Kef Reference Series center, Kef Bookshelf speaker, Monitor Audio bookshelf speaker, Infinity rear speakers. Acurus 3X200W amp.